Go back to home



We have detected that you are using ad blocking software.
The MR2 Australia forum is made possible by ad revenue.
Please disable your ad blocker to ensure that this site lives on.

Hot!new CT26 turbo

Page: 12 > Showing page 1 of 2
Author
tuban
MR2 Enthusiast
  • Total Posts : 34
  • Scores: 4
  • Reward points: 2577
  • Joined: 2012/10/27 20:19:29
  • Status: offline
2018/03/15 15:28:50 (permalink)
5 (1)

new CT26 turbo

Hi,
thought I'd document my purchase of a Chinese CT26 turbo and how the saga goes.
 
I was looking at CT26 rebuild kits on Ebay and found a new turbo for $399 including postage.  There are a number of CT26 turbos on Ebay but most are not for MR2, different flange shape etc but this one looked good.  Seeing as local turbo rebuilds were around the $800-1000 and upwards I've given the Chinese CT26 a go and will report on outcomes.
 
I ordered the turbo on 3/March, got a shipping notification email on 5/Mar and it arrived by TNT on 12/Mar!  Was well packed and amazing delivery for the price that included shipping.
 
The unit has the correct flanges and looks really good compared to my rusty cast iron unit that is almost 30yrs old.  It also came with a nice certificate showing passing a vibration threshold for up to 100,000rpm.  Hopefully it was a test done on this turbo:-)
 
The gaskets that were supplied looked pretty nasty, thin metal with a pressed ridge in places for sealing, maybe that's OK, not sure.  However one was wrong, for a different turbo outlet flange but I do have a new correct gasket.
 
I'm also going to replace a couple of hoses, "hose from hell", HFH, and HFHOE, so I'm now hunting for these, I wasn't expecting the turbo to get here that fast.
 
I'll update next step.
#1


24 Replies Related Threads

    Kook
    MR2 Scholar
    • Total Posts : 483
    • Scores: 22
    • Reward points: 3631
    • Joined: 2011/04/07 19:51:15
    • Location: Victoria
    • Status: offline
    Re: new CT26 turbo 2018/03/15 16:17:17 (permalink)
    0
    For anyone in the market for a new CT26, these are worth a look: https://falconautocreations.com/collections/turbos/products/ct-26-16g
     
    I got mine landed for roughly 700-750
    #2
    Falcon
    MR2 Deity
    • Total Posts : 538
    • Scores: 144
    • Reward points: 4160
    • Joined: 2011/04/07 19:51:15
    • Location: Brisbane Australia
    • Status: offline
    Re: new CT26 turbo 2018/03/16 08:09:08 (permalink)
    0
    Tuban.  Will be very interesting to see how this Chinese thing lasts and also whether it can actually deliver the same amount of air and at what temperature ? I've heard that they tend to heat their air quite badly in order to flow the equivalent volume. Might only be fanciful stories. Do you have any way to compare the air temp. after the compressor on both the original and the new Chinese ?  Comparison of spool up would be good too ?  Thanks.
    #3

    Falcon
    MR2 Deity
    • Total Posts : 538
    • Scores: 144
    • Reward points: 4160
    • Joined: 2011/04/07 19:51:15
    • Location: Brisbane Australia
    • Status: offline
    Re: new CT26 turbo 2018/03/16 08:28:14 (permalink)
    0
    Meant to say. Check the steel hoses around HFH. HFHE. as I've seen them badly corroded and three parts blocked on Gen 2. They are 25 + years old. I suspect this is possibly cause of other funny difficulties as this is at the heart of the oil coolers abilities. Toyota made very significant changes in this area on the Gen 3. engine. Cheers.
    #4
    jaycrab
    MR2 Aficionado
    • Total Posts : 101
    • Scores: 10
    • Reward points: 875
    • Joined: 2017/09/10 15:34:19
    • Status: offline
    Re: new CT26 turbo 2018/03/16 11:39:56 (permalink)
    0
    Also interested in the outcome, quality of fitments, alignment issues etc. 
    Given my luck it's only a matter of time before I need a replacement, and I'd prefer a direct swap.
     
    Is the 'Chinese turbo' advertised as a highflow / upgrade unit or oem spec?
    #5
    tuban
    MR2 Enthusiast
    • Total Posts : 34
    • Scores: 4
    • Reward points: 2577
    • Joined: 2012/10/27 20:19:29
    • Status: offline
    Re: new CT26 turbo 2018/05/30 11:40:14 (permalink)
    +2 (2)
    The turbo was advertised as a CT26 replacement only, no claim for high output.  It is now in and running.  Feels pretty good on a first short drive yesterday.  I don't have inlet temperature logging so can't say if this has changed. 
     
    It looks like it has radically reduced the smoke that I used to get on acceleration so my hope that it was the turbo and not rings (compression was OK) looks OK - so far.  The shaft on the old turbo did seem to have a lot of play - and that was a simple finger test.
     
    The compressor side on the new turbo didn't have the inlet correctly orientated so needed to release the band that connects the compressor and turbine to allow it to be rotated.  Otherwise fitted Ok with the Toyota gasket set.  Also replaced the two hoses from hell.  A new turbo does look very nice!
     
    The turbo now has a different sound on lift-off.  I'm not sure if this tells me that something needs adjustment.  I have a blitz BOV that vents to atmosphere and it used to give a simple relatively quiet whoosh on lift-off but now I get a flutter sound on lift-off.  I'm not sure if that is bad for the turbo or not.  Forums aren't clear on this.  And why did it start when the turbo was replaced?
     
    Once I find out if the new noise indicates a problem or not I'll take it for a longer drive when I can push it and see what boost pressure it gets to.  And then into the unknown to explore reliability:-)
    #6
    tuban
    MR2 Enthusiast
    • Total Posts : 34
    • Scores: 4
    • Reward points: 2577
    • Joined: 2012/10/27 20:19:29
    • Status: offline
    Re: new CT26 turbo 2018/06/11 07:42:55 (permalink)
    0
    I replaced the Blitz BOV with original Toyota BOV (had to buy a VTV bit of plastic for $100(!!) to replace the broken one on my BOV).  Much quieter but had an occasional "bumfhh" noise and not at predictable times in boost or liftoff etc.  Sort of like a blowback sound with a burner.  So went back to Blitz and plumbed the blow-off back to the air intake as with Toyota BOV.  This sounds much better behaved.  Not sure if it's simply that the blow-off is now muffled.
     
    The turbo does feel better than the one it replaced.  I'm now going to try a good run and see if the boost has changed from the old turbo.
    #7
    tuban
    MR2 Enthusiast
    • Total Posts : 34
    • Scores: 4
    • Reward points: 2577
    • Joined: 2012/10/27 20:19:29
    • Status: offline
    Re: new CT26 turbo 2018/06/29 14:41:08 (permalink)
    0
    OK, I'm leaning towards this chinese turbo as a fail.  Boost was 8-9psi, slightly better then previous.  Still slight haze in exhaust when boosting.  So might be rings after all.   More irritating is that I will occasionally see a significant oil burn for 5sec or so and then it goes away.  Only seems to happen in the first 5mins of driving.  And there is a smell of very burnt oil when I put it in the garage.  But no leaks under.  I should have been wary when my garage said it took his guys a while and that he gave me a discount:-(  And that the oil smell would burn off.
    #8
    TonyMR2
    MR2 Deity
    • Total Posts : 639
    • Scores: 85
    • Reward points: 2072
    • Joined: 2014/08/06 20:15:11
    • Status: offline
    Re: new CT26 turbo 2018/06/29 16:30:34 (permalink)
    +1 (1)
    Haze in exhaust can be simply running rich as it should be! 
    Burnt oil - what oil are you running, what oil filter, etc.  10 W - 40, Z4xx filter.
    Are you running a catch can for blow through.
    Many simple things to be done in the mr2 book at this age of the vehicles life.
    #9
    tuban
    MR2 Enthusiast
    • Total Posts : 34
    • Scores: 4
    • Reward points: 2577
    • Joined: 2012/10/27 20:19:29
    • Status: offline
    Re: new CT26 turbo 2018/07/27 14:21:49 (permalink)
    0
    Thanks Tony.  The haze is less than with the old turbo (good) but the old one didn't suffer from the sometimes big puff of smoke after being left in the garage for a week or so (not so good).  So the puff seems to be new turbo rather than other cause.  But good suggestions about oil etc.  I'm running Mobil 1 5W-50 full synthetic, HKS 52009-AK002 filter and no catch can.   I'll try changing to 10-40 oil and I do have a catch can so I'll try that as well.  Any good sites showing how to plumb a catch can?  And ideally what hoses I could remove:-)
    #10
    Xmr2
    MR2 Enthusiast
    • Total Posts : 17
    • Scores: 0
    • Reward points: 36
    • Joined: 2018/11/24 01:47:20
    • Location: Sydney
    • Status: offline
    Re: new CT26 turbo 2018/11/26 23:50:06 (permalink)
    0
    I wonder if you still have the turbo in your car. Sorry to hear that it didn't turn out as good as hoped, but it was always gonna be a gamble.
    Iam in same situation with my ct26 smoking when car is being pushed(hoping its turbo as i havent done compression or leakdown test yet).
    I been thinking about the Kinugawa turbo with GT3071R wheel on ebay going for little over 1k...they seem to have better reviews from what ive seen. Not sure if there is any other bolt on options besides a second hand unit or rebuild wich would cost about the same.
    #11
    TonyMR2
    MR2 Deity
    • Total Posts : 639
    • Scores: 85
    • Reward points: 2072
    • Joined: 2014/08/06 20:15:11
    • Status: offline
    Re: new CT26 turbo 2018/11/27 10:16:07 (permalink)
    0
    Get the car to a mechanic with an air fuel sensor, many specialists mechanics around. Mr2 puff smoke from acceleration and suddenly let off of acceleration can be many things, blow by, over/unburnt fueling, wrong oil velocity, engine upper or exhaust collection, and all sorts of not critical reasons or simple fixes.

    Turbos are a gamble regardless what you get unless new from a reputable Australian dealer.

    Falcon Creations (aka twisted motion) turbos are popular through the Mr2 world. Cheap, highflow (just be careful on first runs to see if overboosting as some wastegate struggle to flowing enough with the bigger inducer and need to port the wastegate holes or different spring rate in the wastegate actuator).

    Rebuilds, as in highflow as it’s similar cost to a standard rebuild however a lot of benefit, offer the advantage of being able to go back to the shop for warranty (not that turbo warrenty is all that full proof). Getting a turbo from kinigawa or other and what arrives regardless of shipping mishaps (visible or not) is what you are stuck with as shipping back costs defeats the exercise.
    #12
    Xmr2
    MR2 Enthusiast
    • Total Posts : 17
    • Scores: 0
    • Reward points: 36
    • Joined: 2018/11/24 01:47:20
    • Location: Sydney
    • Status: offline
    Re: new CT26 turbo 2018/11/28 23:38:32 (permalink)
    0
    Thanks tony for your advice and insight into this matter..i will definitely dig into it a bit more before i pull the turbo out and will get it on dyno to make sure a/f ratios all good for piece of mind.
    My smoking situation is a little diffrent to typical acceleration puff as it only smokes heaps visibly after the car has been driven hard or i done higway run or something.
    in that situation i can smell the oil burn and i can see visible smoke while car is idling and taking off from stationary and if i take it easy for a bit the smoke becomes a lot less. Smoke colour is sort of grey colour and definitely not black or white.
    Iam an amateur when it comes to this stuff but in my simple mind iam thinking that when the oil becomes hot and thin its getting through the not so perfect turbo seal and and coming out of the turbine side and burning off, or bad piston rings, but i was thinking if i have bad piston oil rings the smoking issue would be more consistant?
    Anyhow i guess the process of elimination has to be done properly to narrow it down.was also thinking when i get off my lazy horse i pull the dump pipe off and see if there is visible oil on the turbine.
    Anyways thanks for all the info and iam enjoying learning new things.
    #13
    TonyMR2
    MR2 Deity
    • Total Posts : 639
    • Scores: 85
    • Reward points: 2072
    • Joined: 2014/08/06 20:15:11
    • Status: offline
    Re: new CT26 turbo 2018/11/29 07:14:16 (permalink)
    0
    Cheap, sometimes fix if you don’t already have in your maintenance routine, Subaru WRX dealership engine upper clearner spray. Have also used other auto store engine upper cleaners. Follow instructions of the required rpm (need two people),and spray spray spray. Read the instructions, as from memory a spray process, engine running, then off, then running.

    Eaiest to get to is the hot pipe out of the turbo to Intercooler, see if there is oil residue in there (aka turbo seal), before going to the dump pipe trouble.

    If you go down the path of turbo off, remove and clean out exhaust pipe as it could be something from the vehicles history, as a one off or built up from a very small issue, that now sits in the exhaust and then shows when hot. Best of luck,
    post edited by TonyMR2 - 2018/11/29 07:33:52
    #14
    Xmr2
    MR2 Enthusiast
    • Total Posts : 17
    • Scores: 0
    • Reward points: 36
    • Joined: 2018/11/24 01:47:20
    • Location: Sydney
    • Status: offline
    Re: new CT26 turbo 2018/11/29 22:46:45 (permalink)
    0
    Thanks again for the tips Tony... One of first things i did was to run catch can incase the blowby was spilling to much oil into my turbo, that didn't make a difference tho.
    When i came to change my oil i couldn't undo the filter so i did undo the hot pipe from turbo to intercooler for better access and i did find oil and layer of sludge build up on the silicon connecting hoses....But then again i had the same issue on every turbo car ive owned in past.
    Planning to take intercooler and pipes out and clean degrease everything.
    When i changed oil to castrol edge 5-40 it seems a tad better but the issue is still very much there.
    I will definitely try the upper engine cleaner as it sounds like great idea.
    #15
    Page: 12 > Showing page 1 of 2
    Jump to:

    © 2019 APG vNext Commercial Version 5.5